2.73 Glucose reabsorption

Selective reabsorption means that a molecule will be selected ( glucose) and the reabsorption refers to idea that the glomerulus filtrate will go back to the blood.

• Filtration occurs in the bowman's capsule and the glumerulus filtrate will contain the molecule glucose (and many others e.g. water, salts, amino acids and urea).
• Water is selected back into blood stream at collecting duct where the urine is passed down into the pelvic region.
• At the end of the nephron is urine and normally urine does not contain glucose.
• If we find glucose in the urine it is a condition known as diabetes.
• In the first proximal convoluted tubule glucose is removed and taken back to blood.